I am exploring IAM Roles. I am wondering how roles can be accessed on behalf of a user on EC2.
Any help is highly appreciated.
Thanks
You usually do not have to do anything special after launching an EC2 instance with an IAM Role for Amazon EC2 (I figure from your duplicate questions, that you've already done this), conceptually all you have to do are the following steps:
create an IAM role for EC2
configure IAM policies for that role to match your use case
launch an EC2 isntance with your IAM role
use IAM role aware tools, which will pick up the credentials from the role automatically
Let me stress the last aspect again: you do not need to do anything but configure the required IAM credentials on the role and IAM role aware tools will pick the resulting credentials up automatically from the EC2 instance metadata!
If you really must (but you shouldn't, see next paragraph), you could do the same yourself as explained in Retrieving Security Credentials from Instance Metadata.
In particular, you should use AWS only by one of the following means for everything but highly special use cases:
Command Line Usage
Unix/Linux/Windows - use the AWS Command Line Interface, which is a unified tool to manage your AWS services.
see Option #3 within AWS Credentials regarding the IAM role support
Windows only - use the AWS Tools for Windows PowerShell , which lets developers and administrators manage their AWS services from the Windows PowerShell scripting environment.
see section IAM Roles for EC2 Instances and the AWS Tools for Windows PowerShell within AWS Credentials regarding the IAM role support
Programmatic Usage
Use the appropriate AWS SDK for your language of choice, see Tools for Amazon Web Services for an extensive listing of what's available.
see each SDK's documentation for details regarding the IAM role support (again, it will just work once you have implemented steps 1-3 above correctly).
Related
I just successfully went through the Cognito setup through AWS console, which is a manual process. I wanted to code it up next, i.e.,
I wanted to setup and configure my Cognito with Cloudformation config file AWS AWS::Cognito::UserPool. However, I don't see a field that define the open id connect providers (i.e, the Facebook and Google as identity provider).
Is there a way to do so?
I am on the Cognito team and this is not possible at this point. However, it is on our roadmap to bring CloudFormation support up to speed to all the features we have launched recently.
In order to log into AWS MFA is required. But if I had a program running on an EC2 instance that invoked AWS services via API calls, would such a program also need to authenticate using MFA or would this not be required because we are already "in?"
MFA is only required when logging into the AWS web console with a username/password. When you make API calls you would use an IAM access key, or even better (since your program is running on EC2) an IAM instance profile, which doesn't require MFA.
API calls can be made to require MFA as well using an IAM policy. However, if you were to deploy such policy, you could also exclude VPC-internal subnets from the MFA requirement so that MFA would only be required when accessing the AWS API endpoints from the outside.
Here's a link to my repository which contains an example enforcement policy (see example-mfa-policies/EnforceMFA.txt): https://github.com/vwal/awscli-mfa
I am developing image server through S3 in AWS(Amazon Web Service) but i should solve the management issue
What i mean is that end user should be able to specific images in S3
For that, i am thinking about IAM(Identity access management) for allowing some users to access specific images.
What i want to know is that whether there is other solutions or not.
Actually, i have found about cognito but unfortunately cognito is supported in only 2 regions....
If you have a good idea, please give me explanation thank you
Unfortunately there is nothing in the suite of AWS services that fits your use case 100%.
While Amazon Cognito is only available in 2 regions, this does not restrict you to accessing S3 from only those 2 regions with credentials vended from the service. You could Amazon Cognito and IAM roles to define a policy that would allow for limited permissions to a set of files based on the prefix. However, at the current time, role policies would allow you to restrict access to 2 classes of files:
"Public files" - files accessible via all identities in your pool.
"Private files" - files accessible only to a specific identity in your pool.
If you wanted to support restricting access to specific files to specific users in your application you would need to handle this through a backend application that would proxy the access to the files in S3.
I am writing my own reporting software in Java and planning to use RDS for data storage. I want to do the A.A. with AWS IAM. Is there any example(s) of authenticating and authorizing with AWS Identity and Access Management that you might be aware and share with me?
I am not looking on how to set up the user from Amazon's console or how to issue console commands. Instead I would like to see some Java code how to identify if user is authenticated with his/her credentials (user id, password combination) and whether that person authorized to get access to specific report.
AWS IAM is not designed to authenticate users with your own app. AWS IAM is designed to authenticate users with AWS services.
The only way to see if a user is a real user(authentication) and if that user is authorized is to actually make an AWS API call.
For example, you can create a policy that looks like this and attach it to a user/group:
{
"Statement":[{
"Effect":"Allow",
"Action":["rds:CreateDBSecurityGroup",
"rds:DeleteDBSecurityGroup",
"rds:DescribeDBSecurityGroup",
"rds:AuthorizeDBSecurityGroupIngress",
"rds:RevokeDBSecurityGroupIngress"],
"Resource":"*"
}
]
}
And the user or group who has this policy can only make these API calls and not others.
See here: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/UsingWithRDS.IAM.html
Amazon has something called Cognito which is designed to sync application profiles across mobile devices. What applies to your question, though, is that it also allows users to authenticate with Google, Facebook, or Amazon (it uses OAuth).
http://aws.amazon.com/cognito/
I have a personal Amazon account which I use to do a lot of shopping. I also recently linked this account to AWS. Now at work, some guys are doing experiments with Amazon using my account. How can I let them access the admin console, etc without giving them my Amazon credentials. I am not willing to share my Amazon shopping history or other things I use on Amazon, just the cloud services such as EC2 and S3.
What they need is access to the full admin console, and any monitoring tools on AWS.
Use AWS Identity and Access Management (IAM).
AWS Identity and Access Management (IAM) enables you to securely
control access to AWS services and resources for your users. Using IAM
you can create and manage AWS users and groups and use permissions to
allow and deny their permissions to AWS resources